Home / 15,980.74-23,971.16-4,887.38

Finding the Fourth Proportional to 15,980.74, 23,971.16 and 4,887.38

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Solution

The fourth proportional to 15,980.74, 23,971.16 and 4,887.38 is: 7,331.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.74 : 23,971.16 = 4,887.38 : x
  2. Step 2: Convert to fraction form
    15,980.74/23,971.16 = 4,887.38/x
  3. Step 3: Cross multiply
    15,980.74x = 23,971.16 × 4,887.38
  4. Step 4: Simplify right side
    15,980.74x = 117,156,167.96
  5. Step 5: Solve for x
    x = 117,156,167.96/15,980.74
  6. Step 6: Final answer
    x = 7,331.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.